Gabby Uceda, left, and her sister, Juliana, bundle up against the cold as they walk along the pond at Creekside Park Friday, Jan. 24, 2014, in The Woodlands. Classes in Conroe ISD schools were cancelled Friday due to icy weather. ( Brett Coomer / Houston Chronicle ) less

Gabby Uceda, left, and her sister, Juliana, bundle up against the cold as they walk along the pond at Creekside Park Friday, Jan. 24, 2014, in The Woodlands. Classes in Conroe ISD schools were cancelled Friday ... more

David Grant, of Houston, walks past a small snowman shaped like a seated Sam Houston in front of Austin Hall on the campus of Sam Houston State University following an overnight snowfall Friday, Jan. 24, 2014, in Huntsville. Classes at SHSU were cancelled Friday. ( Brett Coomer / Houston Chronicle ) less

David Grant, of Houston, walks past a small snowman shaped like a seated Sam Houston in front of Austin Hall on the campus of Sam Houston State University following an overnight snowfall Friday, Jan. 24, 2014, ... more

Photo: Brett Coomer, Houston Chronicle

David Grant, of Houston, walks past a small snowman shaped like a... Photo-5772300.78381 - Houston Chronicle

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Christina Rizer, a Sam Houston State University senior from Spring, rolls a ball of snow to make a snowman following an overnight snowfall Friday, Jan. 24, 2014, in Huntsville. Classes at SHSU were cancelled Friday. ( Brett Coomer / Houston Chronicle ) less

Christina Rizer, a Sam Houston State University senior from Spring, rolls a ball of snow to make a snowman following an overnight snowfall Friday, Jan. 24, 2014, in Huntsville. Classes at SHSU were cancelled ... more

Brittany Munoz, left, slides down a hill after a push from Jeimmy Tellez in front of the Peabody Library in a laundry basket following an overnight snowfall on the campus of Sam Houston State University Friday, Jan. 24, 2014, in Huntsville. Classes at SHSU were cancelled Friday. ( Brett Coomer / Houston Chronicle ) less

Brittany Munoz, left, slides down a hill after a push from Jeimmy Tellez in front of the Peabody Library in a laundry basket following an overnight snowfall on the campus of Sam Houston State University Friday, ... more

Photo: Brett Coomer, Houston Chronicle

Brittany Munoz, left, slides down a hill after a push from Jeimmy... Photo-5772302.78381 - Houston Chronicle

Sam Houston State University student Marissa Anukwuem, of Houston, slides down a snow-covered hill following an overnight snowfall Friday, Jan. 24, 2014, in Huntsville. Classes at SHSU were cancelled Friday. ( ... more

Sam Houston State University student Marissa Anukwuem, of Houston, slides down a snow-covered hill following an overnight snowfall Friday, Jan. 24, 2014, in Huntsville. Classes at SHSU were cancelled Friday. ( ... more

Sam Houston State University student Paris Mayfield, of Houston, slides down a snow-covered hill following an overnight snowfall Friday, Jan. 24, 2014, in Huntsville. Classes at SHSU were cancelled Friday. ( ... more